DE102007015102A1 - engine location - Google Patents

Abstract

The invention relates to a motor arrangement (1) having a motor (4) on which a transducer device (6) is arranged, with a control device (2) spatially separate from the motor, which is connected to the motor (4) via at least one connecting line (10 ) is in communication connection and controls the motor movement, with at least one of the motor (4) arranged sensor means (8) which detects at least one physical property of the motor and outputs a characteristic characteristic of this physical signal, the transducer means (6) via the Connecting line (10) with the control device (2) is connected. According to the invention, there is a direct communication connection (9) between the sensor device (8) and the transducer device (6), via which the sensor device (8) outputs the characteristic signal directly to the transducer device (6).

Description

The The present invention relates to a motor assembly. such Motor assemblies have long been known in the art. there In particular, it is known that such motor arrangements in addition the engine itself one usually have arranged on the engine motor encoder and a control and / or evaluation, which controls the movement of the engine. This evaluator is usually about a Cable or cable connected to the motor. More precisely, it is customary a lot of cables needed which of the control / evaluation to the Engine guided such as a power cable and a variety of control cables or control wires.

Besides Motor encoder systems are also known in which the encoder of the motors Position, velocity and acceleration values for control use of the engine. The respective position, speed and and acceleration values also transmitted via control cables to the transmitter and the transmitter controls in response to the measured values the engine. This results in a very high total cable expenditure, there usually the Power, sensor and encoder signals are each laid in separate cables become. More specifically, a double or multiple cable routing is needed and also a double or increased Number of plugs or cables. In addition, for example wider cable tow devices in electrical machines and an elevated one Installation space required.

Of the The present invention is therefore based on the object, the cabling effort between the encoder system and the transmitter to reduce and in particular also the number of necessary plugs and cables or To lower cables. More specifically, the effort is overall in terms of material and cost of communication between be reduced to the encoder system and the transmitter.

This is inventively a motor assembly according to claim 1 and an electrical connection line achieved according to claim 8.

advantageous embodiments and further developments are the subject of the dependent claims.

The inventive motor assembly has a motor on which a transducer device is arranged. Besides is one of the engine spatially separate control device provided, which with the engine via at least a motor line is in communication connection and the motor movement controls. In addition, at least one sensor device arranged on the motor is provided provided, the at least one physical property of the engine or whose movement is detected and a for this physical property outputs characteristic signal. Here is the encoder device preferably over a connecting line and more preferably also over the Motor cable connected to the control device.

According to the invention between the sensor device and the transducer device a direct Communication connection, via which the sensor device the characteristic signal directly outputs to the encoder device.

Under a physical property of the motor or its movement basically all Properties understood about which the motor or its movement can be characterized such as a temperature of the engine, a torque of the engine Motors, a position of the rotor shaft or rotor and the like. Also can externally initiated physical quantities are detected and processed be like shocks, vibrations or similar.

In order to According to the invention, the donor system or the encoder device as a central control unit for evaluation used by external sensors. While currently, as mentioned above, the Signals from the sensors and the encoder signals each in their own cables are directed to the control device, it is proposed according to the invention that a part of signals, for example, the evaluation of external Sensors over the encoder interface takes place. So these external sensors must not that of the engine spatially be supplied spaced evaluation electronics. In this way can the necessary signal lines are significantly reduced and in particular it is also possible lay the signal cables directly in power cables. The donor device acts according to the invention as a central Control unit, in the signals of the individual sensor devices converge. In addition, you can also facilities provided or connected to information to identify, evaluate and save for preventive maintenance.

Preferably the encoder device has a processor device which is such is designed such that in response to the transmitted from the sensor device characteristic signal transmits an output signal to the control device becomes. The controller may in turn respond to this output signal activate the motor accordingly. The cabling effort between the engine and the control device can thus be significantly reduced.

Prefers the motor arrangement has a plurality of sensor devices, wherein the individual sensor devices in each case via sensor lines or some common lines or via common Communication are connected to the transmitter device. This will be in this embodiment the transmitter device used as a central control unit, which processed a variety of sensor signals.

Preferably is the sensor device from a group of sensor devices selected which Temperature sensor devices, position sensor devices, speed sensor devices, Force sensor devices, acceleration sensor devices, combinations from this and the like. Using these different sensor devices, a exact control of the engine are performed.

at a further advantageous embodiment is at least a sensor device in bidirectional communication connection with the transducer device. For example, it is also possible that the encoder device as a central control unit reverses signals sent to the position sensor or temperature sensor, which in turn of these are used in the output of signals.

Preferably The motor device has a braking device, which also is in communication with the transmitter device. In order to the braking device is also controlled by the transducer device, Conversely, the braking device also transmit signals to the transmitter device can. In addition, a control unit can be provided or integrated be, for example, the brake signals during the driving process evaluates to draw conclusions to pull the behavior of the braking device. Also is a constant monitoring For example, the brake signals possible to defects already at to recognize their appearance.

Preferably the motor line has three power lines, one ground line (PE) and two control lines. Preferably, the Motor and its transmitter device in a common housing preferred also arranged with the individual sensor devices. On too This way, the cabling overhead can be reduced and simultaneously can in this way secure cable connections are guaranteed.

The The present invention is further directed to an electrical connection line for connecting an engine to a control device controlling the engine directed. This connecting line has an outer shield, at least three inside this outer shield extending power lines, each from an electrical insulating cladding are surrounded. In addition, a grounding line is provided as well as a inside the outer shield running control line. According to the invention are within the control line two control cores arranged, which together by a second Shield are surrounded, wherein the second shield and the outer shield against each other are insulated and wherein on the second shield at least an end of the connecting line, an electrical contact device is arranged, which with the second electrical shield is in electrically conductive connection.

Prefers is the cross section of at least one envelope and / or the cross section the second shield at at least one end of the connecting line and preferably formed irregularly at both ends. Under irregular becomes understood that the cross-section of the said insulation or Shield has a maximum of one axis of symmetry.

Preferably the said cross section has at least one with respect to wrapping outward outstanding advantage. Conceivable, however, would be about one after inside protruding recess.

In order to according to the invention, the second or inner shield own contact or own PIN on.

Further Advantages and embodiments emerge from the attached Drawings.

In this demonstrate:

1 a motor assembly according to the prior art;

2 an engine assembly according to the invention;

3 a representation for illustrating the operation of the motor assembly according to the invention; and

4 a cross section of an electrical connection line according to the invention.

1 shows a motor assembly according to the prior art. This is an engine 4 with an output shaft 4a provided, the engine 4 together with a giver 6 and sensor devices 8th . 14 is arranged in a common housing.

The reference number 3 refers to a port through which the engine 4 and the individual Facilities via a variety of connection cables 5 . 5a with a control and evaluation unit 2 are connected, which controls the engine. In this case, a large number of wires is needed to the engine 4 with the control / evaluation unit 2 connect to. Specifically, in addition to three power lines and a ground line, several, for example four, control wires are needed to control the rotational movement of the motor. In addition, the individual sensor devices are each for regulation with the control / evaluation unit 2 (hereinafter referred to as control device) via a line 5a connected and again here is a variety of control wires, such as ten control wires, necessary to connect all the sensors with the control / evaluation unit.

In order to In the prior art, a considerable amount of wiring is necessary and also are correspondingly elaborate Plug connections available to deliver. Furthermore provide such connectors and cable connections a common one Error source is because, for example, loaded by external influences such as shocks the plug contacts can be. Also, such outer plug contacts are more exposed to external influences and thus a higher one Subjected to wear.

2 shows a motor device according to the invention. It can be seen that here the encoder unit assumes the function of a central control unit. More specifically, the sensor devices 8th . 14 . 16 each via sensor lines 9 . 11 . 13 with the transducer device 6 connected. Thus, the cabling effort between the encoder system and the control device 2 greatly simplified, resulting in the elimination of a variety of plugs and cables. The reference number 18 refers to a brake control, which also has a connection line 22 with the transducer device 6 communicated. The motor cable 10 can thus be carried out according to the invention much easier than in the prior art. More precisely, it is possible in the motor line 10 Both the power cable and the grounding line and two control wires to lead. The transducer device is via a connecting line 21 with the engine 4 connected.

Thus, by the present invention, only one line connection (the motor line 10 ) between the control device 2 and the engine 4 required. In the donor institution 6 There is a processor device which receives the input signals of the individual sensor device 8th . 14 . 16 as well as the brake control 18 detected and a corresponding processed signal to the control device 2 forwards. This signal can be transmitted via the motor cable 10 or one of the control wires in the motor cable 10 be transmitted. In response to these signals, in turn, the control device 2 controlling the engine, which is also via the motor cable 10 or one of the control wires within this motor cable takes place. The reference number 12 indicates a connection line between the transmitter device and the connector. This connection line can, in particular in the case of very short distances, also be in the form of a connection contact.

3 shows a schematic representation of the invention underlying idea. The transmitter device communicates 6 as a central control unit, for example via a bidirectional connection line 23 with the brake control 18 , Via another bidirectional connection line 24 may be certain engine data, such as the position of the rotor, a speed or acceleration to the central control unit 6 be passed on.

The reference number 8th refers to a temperature sensor for the engine temperature. On the one hand, you can use a bidirectional connection line 25 Temperature data to the encoder device 6 However, it is also possible, signals from the transmitter device to the temperature sensor 8th to transmit, so that this in turn can influence the engine operation. Several temperature sensors can also be used to monitor the motor and their signals can be evaluated.

The reference number 14 denotes another sensor or a plurality of further sensors, which signals via an undirectional connection 26 to the transmitter device 6 to transfer. The reference number 19 is representative of any other sensors or output devices that may be used to control the motor and / or external devices. In addition, the device according to the invention can also have a memory device which records or logs relevant motor data, for example a specific temperature, at a specific point in time.

4 shows a highly schematic cross section of a cable according to the invention (or the motor cable) 10 , Inside this line cable are three power lines 34 . 36 . 38 intended to supply the engine. These power cables are each with insulating sheaths 35 . 37 . 39 surround. The reference number 40 refers to a grounding wire, also from a sheath 41 is surrounded. In addition to these said power lines, the connecting line also has a control line 42 on. Within this control line 42 There are two control wires 44 and 46 coming from a second shield 45 , preferably a metallic shield, such as egg tinned copper braid, are surrounded. This second shield 45 is surrounded by a preferably double-applied Myloarfolie.

All lines are from a first shield 32 , which preferably also consists of a tinned copper braid surrounded. The reference numerals 32a and 32b refer to bandages that are on the first shield 32 are attached.

The reference number 33 refers to an outer jacket of the cable 10 , The reference number 31 denotes a core monofilament and the reference numeral 43 other monofilaments, which are arranged between the individual lines

The two control veins 44 . 46 are each of an enveloping insulation 47 surrounded and twisted together.

In addition, between the first shield 32 and the second shield 45 another (not shown) insulating sheath may be provided, which the second shield 45 surrounds. This further insulating sheath preferably has a non-circular profile in order to be able to be inserted into a correspondingly adapted coupling. By this coding, a wrong insertion of the connecting line can be prevented in the engine. Also can be ensured by this further insulating sheath in the insulating already that the cable itself is correctly connected to a plug. Particularly preferably, this (not shown) further insulating sheath on an outwardly or inwardly projecting projection which serves for coding.

The reference number 49 refers to a PIN or a contact point, with the second shield 45 can be connected to the engine. This indicates that in 4 shown cable 10 a total of eight or nine PINs or contacts, which are inserted into a corresponding coupling. In addition to the three power lines 34 . 36 . 38 and the grounding line 40 also show the two control veins 44 . 46 Connections or PINs. Another connection is through the connection 49 given and a last connection is directly the first shielding 32 which may, for example, lead to the housing of a metallic plug.

Furthermore, it would also be possible, the insulation 35 . 37 or 39 to be provided with non-circular cross-sections or codes that incorrect insertion of the electrical line 10 prevent. The insulation 47 However, it may also have other shapes than those shown to prevent them from being inserted incorrectly.

All Features disclosed in the application documents are considered to be essential to the invention as long as they are individually or in combination with respect to State of the art are new.

1

engine location

2

control device or control / evaluation unit

3

connection

4

engine

4a

output shaft

5, 5a

connection cable (State of the art)

6

Transducer device

7

casing

8th

Sensor device, temperature sensor

9

Sensor line, direct communication connection

10

motor cable

11

sensor line

12

connecting line

13

sensor line

14 16

sensor device

15

brake device

18

brake control

19

Further sensors

21

connecting line

22 24, 25

bidirectional connecting line

26

unidirectional connection

31

Kernmonofil

32

first shielding

32a, 32b

banding

33

outer sheath

34 36, 38

power line

35, 37, 39

insulating wrapping

40

ground wire

41

wrapping

42

control line

43

additional monofilament

44 46

control wire

45

second shielding

45a

Myloarfolie

47

enveloping insulation

49

connection

Claims (10)

Motor arrangement ( 1 ) with a motor ( 4 ) to which a transducer device ( 6 ) is arranged, with a spatially separated from the engine control device ( 2 ), which with the engine ( 4 ) via at least one motor line ( 10 ) is in communication connection and controls the motor movement, with at least one on the engine ( 4 ) arranged sensor device ( 8th ) detecting at least one physical property of the motor and outputting a signal characteristic of that physical property, the transducer means ( 6 ) with the control device ( 2 ) connected is. characterized records that between the sensor device ( 8th ) and the transducer device ( 6 ) a direct communication connection ( 9 ) via which the sensor device sends the characteristic signal directly to the transducer device ( 6 ). Motor arrangement according to claim 1, characterized in that the encoder device comprises a processor device which is designed such that in response to the characteristic signal transmitted by the sensor device, an output signal to the control device ( 2 ) is transmitted. Motor arrangement according to at least one of the preceding claims, characterized in that the motor arrangement ( 1 ) a plurality of sensor devices ( 8th . 14 . 16 ), wherein the individual sensor devices in each case via sensor lines ( 11 . 13 . 22 ) with the transducer device ( 6 ) are connected. Motor arrangement according to at least one of the preceding Claims, characterized in that the sensor device consists of a group selected by sensor devices which temperature sensor devices, position sensor devices, speed sensor devices, Force sensor devices, acceleration sensor devices, combinations from this and the like. Motor arrangement according to at least one of the preceding claims, characterized in that at least one sensor device ( 8th . 12 . 16 ) in bidirectional communication connection with the transmitter device ( 6 ) stands. Motor arrangement according to at least one of the preceding claims, characterized in that the motor arrangement comprises a braking device ( 18 ), which is in communication with the transmitter means. Motor arrangement according to at least one of the preceding claims, characterized in that the motor line comprises three power lines ( 34 . 36 . 38 ), a grounding line ( 40 ) and two control lines. Electrical connection line ( 10 ) for connecting an engine to a control device controlling the engine ( 2 ), with an outer shield ( 32 ), at least three power lines running inside said outer shield ( 34 . 36 . 38 ) each of an electrically insulating sheath ( 35 . 37 . 39 ) are surrounded with a grounding line ( 40 ) and with one inside the outer shield ( 32 ) extending control line ( 42 ), characterized in that within the control line two control wires ( 44 . 46 ) are arranged, which of a second shield ( 45 ), wherein second shielding ( 45 ) and the outer shield ( 32 ) are insulated from each other and wherein on the second shield ( 45 ) at least one end of the connecting line, an electrical contact device ( 40 ) which is in electrically conductive communication with the second electrical shield. Electrical connecting line according to claim 8, characterized in that the cross-section of at least one sheath ( 35 . 37 . 39 . 41 . 47 ) is executed asymmetrically at least at one end of the connecting line. Electrical connecting line according to claim 9, characterized in that the cross-section of at least one sheath ( 35 . 37 . 39 . 41 . 47 ) has a projection projecting outwardly with respect to the casing.